2026 BYD Seal U 1.5 Boost

Overview

• Make: BYD
• Model: Seal U
• Trim: Boost
• Version: 1.5 18.3kWh Boost CVT FWD Euro 6 (s/s) 5dr (214 bhp)
• Year: 2026
• Mileage: 4,900 miles
• Fuel: Plug-in hybrid (petrol)
• Body: SUV, 5 doors, 5 seats
• Engine: 1.5 litres, 214 bhp
• Gearbox: Automatic (CVT)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 20 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 4,900 miles on the clock, this 2026 BYD Seal U Boost has done roughly 2,000 more miles than a typical 2026 BYD Seal U. The dealer is asking £25,495, which is £100 below the AskCar estimate of £25,595. To work out the AskCar estimate, we analyse UK dealer adverts for 821 BYD Seal U cars across different ages and specifications. We first recorded this car for sale 1 day ago. The seller is Pentagon BYD Nottingham, based in Nottingham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £100 (under 1%) under the AskCar estimate of £25,595.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 821 priced BYD Seal U adverts across different ages and specifications, as of 8 November 2026.

A 2026 BYD Seal U with the 1.5 plug-in hybrid engine is typically advertised at £27,000: the median of the 359 for sale on AskCar, as of 8 November 2026.

Time on sale

AskCar first saw this 2026 BYD Seal U advertised 1 day ago. About half of 2026 BYD Seal U cars are gone from sale within a month of being advertised: 166 of the 324 first advertised between 10 July 2026 and 5 October 2026.

Price history

AskCar first saw this advert on 7 November 2026 at £25,495. Its asking price has not changed.

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 2,000 miles higher than the median mileage of a 2026 BYD Seal U on AskCar.

Similar cars

251 other 2026 BYD Seal U Boost 1.5 plug-in hybrid automatic SUVs are for sale at UK dealers, from £22,516 to £35,595, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 4,910 miles. Price: £23,990, £1,505 less than this car. Dealer: Swansway Garages BYD Crewe in Crewe. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-c4fbd5320e28
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue. Mileage: 4,886 miles. Price: £26,778, £1,283 more than this car. Dealer: D. M. Keith in Doncaster. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-e9cd7a0d56a3
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 4,824 miles. Price: £25,998, £503 more than this car. Dealer: Arnold Clark Mercedes-Benz Of Perth in Perth. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-a7171d3a7235

• The nearest: 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey, under a mile from this car. Mileage: 4,384 miles. Price: £25,295, £200 less than this car. Dealer: Pentagon BYD Nottingham in Nottingham. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-7443d75a45c8